A: No. That file does not exist. Any website claiming to have it is lying.
A: Go to the "Krypt" mode to unlock Fatality information, or look up move lists online (e.g., Scorpion's "Toasty" is Up, Up, O).
A: Yes. MK: Unchained runs on any Android device from the last 6 years.
A: Mortal Kombat: Unchained is the best official release.
For the real MK11, subscribe to Xbox Cloud Gaming. Until then, happy fighting, and remember the Fatality inputs: ! FAQ